Metal reinforcement for metal-reinforced concrete construction.



w. s. FERGUSON. METAL REINFORCEMENT FUR METAL REINFORCED GONCRETE CONSTRUCTION.

' APPLICATION FILED DEC. 26,1908.

943,402. Patented Dec.14,1 909.

' provide means metal rods comprised in the said metal re- UNITED STATES PATENT OFFICE.

WILLIAM S. FERGUSON, OF CLEVELAND, OHIO, ASSIGNOR TO THE NATIONAL CONCRETE SPECIALTY COMPANY, OF SANDUSKY, OHIO, A CORPORATION OF OHIO.

METAL REINFORCEMENT FOR METAL-REINFORCED CONCRETE CONSTRUCTION.

Specification of Letters Patent. Application filed December 26, 1908.

Patented Dee. 14, 1909. Serial No. 469,238.

clare the following to be a full, clear, and

exact description of the invent-ion, such as will enable others skilled in the art to which it pertains to. make and use the same.

This invention relates to improvements in metal reinforcement for metal -.reinforced concrete construction and pertains more especially to the metalreinforcement for metal-reinforced concrete floors or other objects which are laid or arranged substantially in a horizontal plane.

The primary object of this invention is to whereby the intersecting inforcement are etliciently and inexpensively locked together at their intersections.

Another object is to provide a chair or stand wherever any two rods which are arranged the one next above the other cross each other substantially in horizontal planes and to form the said stand of'a sheet-metal piece having two legs spaced longitudinally .of the upper rod and arranged at opposite sides respectively of the lower rod, and a saddle which is arranged between the legs and in position to form a seat for the lower rod and connected with each leg by two bailshaped members which are arranged M's-0Z- m's at opposite sides respectively of the upoer rod and extend far enough above the said upper rod to permit the interposition, between the said upper rod and the downwardly facing or inner surfaces of the central portions of the said bail-shaped members, of a wedge which cooperates with the said bail-shaped members in clamping the u ppcr rod downwardly upon the lower rod.

Another object is to so form the said chair or stand that it will be strong and durable and will have such an adequate bearing upon the floor temporarily laid next below the space which is to' receive the concrete f floor that the legs of the said stand will not crete floor upon the removal of the saidproved means for locking together two in-- tersecting rods of the metal-reinforcement of the said floor at the intersection of the said rods. Fig. 2 is a vertical section on line 22, Fig. 1, and illustrative of the said locking means. Fig. 3 is a vertical section on line 3-3, Fig. 2, looking in the direction indicated by the arrow.

Referring to the drawings, A indicates a temporary floor upon which a metal-reinforced concrete fioor is to be formed, and B,

Fig. 1, indicates the concrete or cementitious material of the said metal-reinforced concrete'floor. C and D represent two metal rods of my improved metal reinforcement, which rods cross each other in substantially horizontal planes and are in contact with each other and arranged the one above the other and at a right angle to each other. The lower rod D forms therefore a bottom-bearing or seat for the upper rod C. That is, the lower rod D is arranged substantially horizontally and is crossed at the top by the substantially horizontally arranged upper rod C which is seated or rests on the lower rod. The rods C and D, when as shown they form a portion of the metal reinforcement of a metalreinforced concrete floor are secured at the ends (not shown) to walls, columns or beams of a building comprising the said floor.

My invention consists essentially in improved means for locking the rods C and D together at their intersection and holding the said rods elevated above the temporary floor A a suitable distance preparator to the embedding-of the said rods and ting means in the layer of concrete compacted on indentthe temporary floor and hence will i the said floor to complete the formation of not project below the metal-reinforced con- I the metal-reinforced concrete floor.

Themeans employed for looking or so curing together the two intersecting rods C and D at their intersection preferably comprise a sheet-metal piece shaped as required to render it suitable for use as a chair or stand and having two laterally spaced vertically arranged or upright end members end-members E. The saddle or bearing 0 also prevents lateral displacement of the lower rod D. The legs or end members E are arranged at opposite sides respectively of the lower or bearing-engaging rod D Preferably the saddle or bearing 0 is connected at each side of thesaddle by two bail-shaped members 5 with the adjacent leg or end-member E, said bail-shaped members being arranged at opposite sides respectively of the upper rod C with their endportions spaced longitudinally of the said rod. It will be observed therefore that the two bail-shaped members 5 which connect the saddle or bearing 0 with a leg E are anranged 'vz's-d-m's at opposite sides respec- 'tively of the upper red C and extend far enough above the said rod to accommodate the interposition, between the said rod and the under or inwardly facing surfaces of the central portions of the said bail-shaped members, of a wedge or securing device G which engages and extends transversely of the said rod between the latter and the said surfaces and clamps the said rod downwardly against the lower rod D.- It will be observed that the two wedges or securing devices are -spaced longitudinally of the upper rod C and arranged substantially equidistantly from the lower or bearing-engaging rod in opposite directions respectively, and that the Wedge and the-central portions of the bail-shaped members atone side of the lower rod D and the wedge and the central projecting I portions of the bail-shaped members at the other side of the said lower rod constitute simple and efficient means for clamping the upper rod against .the lower or bearingen aging rod.

he legs are provided at their'lower ends and externally with laterally and outwardly flanges 6 which form feet for the legs and enlarge the bearing of the legs upon the temporary floor and prevent the legs from cutting into the said floor and from projecting below the said floor when the latter is removed after the completion of the metal-reinforced concrete floor. Each leg E eeaaoa is provided between its flange or foot 6 and the bail-shaped members which connect the said leg with the saddle c, with a hole 7 extending laterally therethrough to permit cementitious. material, compacted on the temporary floor in forming my improved metal-,

reinforced concretefioor to pass through the said legs and thereby facilitate the filling with cementitious material. of the space between the two legs and between the saddle and the said legs.

It will be observed that the bail-shaped members 5 are not only spaced longitudi-' nally of the saddle e and at opposite sides respectively of the upper rod 0 and thereby prevent lateral displacement oft'he-said rod, but also prevent dis la'cexnent of the wedges G longitudinally o the said rod, and the relative arrangement of the parts is prefer-- ably such that the end-portions of the said bail-shaped members extend a suitable. distance below the said rod so that any direct bearing of the said rod upon'the legs and saddle is avoided.

\Vhat I claim is 1. In metal reinforcement for metal-reinforced concrete construction, the combination, with two intersecting rods crossing each other, one of the rods afiordin bearing to the other rod of means for'locklng the rods means comprising a metal piece contoured to permit contact a bearing which is engaged by one of the rods, a securing device arranged transversely of and in position to clampthe other rod against the bearing-engaging rod in thedi- -together at their intersection, said locking 7 between the rods and having rection of the said bearing, and the aforesaid metal piecehaving a memberformed thereon and-engaged by and cooperating with the said securing device in causing the rods to be clamped together between the said bearing and the said securing device.

2. In metal reinforcement for metal-reinforced concrete construction, the combination, with two intersecting rods crossing each other, one of the rods affording bearing to the other rod of means for locking the rods together at their intersection, said locking means comprising a metal piece having two suitably spaced end members and a bearing which is engaged by one of the rods and ar ranged between the said end members, and a plurality of securing devices arranged'transversely of and in position to clamp the other rod against the bearing-engaging rod in the direction of the said bearing, and the aforesaid metal piece being contoured to permit Y contact between the intersecting. rods and having members which are formed thereon and cooperate and cooperating with the said securing devices in causing the rods to be clamped to 'ether between the said bearing and the securing devices.

3; In metal reinforcement for metal-reinforced concrete construct-ion, the combination, with two intersectin rods crossing each other, one of the rods a%ording bearing to the other rod of means for locking the rods together at their intersection, said locking means comprising a metal piece whichis contoured to permit contact between the rods and has two suitably spaced end members and a member which is engaged by and forms a bearing for one of the rods between I the said end members; two securing devices extending transversely and spaced longitudinally of and engaging the other rod and arranged substantially equidistantly from the bearing-engaging rod in opposite dircctions respectively and in position to clamp the rod engaged by the said securing devices against the bearing-engaging rod in the direction of the aforesaid bearing, and the aforesaid metal piece having members formed thereon and cooperating with the said securing devices in causing the rods to be clamped together between the said bearing and the said securing devices.

4. In metal reinforcement for metal-reinforced concrete construction, the combination, with two substantially horizontal intersecting rods crossing each other and arranged one next above and seated on the other, of a sheet-metal piece contoured to permit the upper rod to rest upon the lower rod, said sheet-metal piece having two laterally spaced legs and a saddle intermediate the legs and forming a seat for the lower rod, said legs being arranged at opposite sides respectively "of the lower rod and provided at their lower ends with laterally projecting members which form the lowermost portions of the legs, and means whereby the upper rod is clamped to the lower rod.

5. In metal reinforcement for metal-reinforced concrete construction, the combination, with two intersecting rods crossing each other in substantially horizontal planes and in position to be clamped, of a chair or stand contoured to permit the upper rod to rest on the lower rod and comprising two legs and a saddle intermediate the legs, said legs being spaced longitudinally of the upper rod and arranged at opposite sides respectively of the lower rod, and the saddle being arranged to form a seat for the lower rod, andmeans whereby the upper rod is clam ed downwardly against the lower rod.

.6. in metal reinforcement for n1etal-reinforced concrete construction, the combination, with two intersecting rods crossing each other, one of the rods affordin the other rod of means for locking the rods together at their intersection, said locking means comprising a metalpiece which is contoured to permit contact between the intersecting rods and forms a bearing which is engaged by one of themods; means clamping the other rod against the bearing-engagother rod and in bearing to.

ing rod and arranged at one side of the bearing-engaging rod, and duplicatemeans arranged at the opposite side of the bearingengaging rod and effecting the clamping to the latter of the other rod.

7. In metal reinforcement for metal-rein forced concrete construction, the combina tion, with two intersecting rods crossing each other, one of the rods affording bearing to the other rod of means for locking the rods together at their intersection, said lockin means comprising the following z-a meta piece contoured to permit contact between the intersecting rods and forming a bearing which is engaged by one of the rods, securing devices arranged transversely of the position to clamp the said last-mentioned rod against the bearing-engaging rod in the direction of the said bearing, and members which are integral with the said bearing and cotiperate'with the said securing devices in causing the rods to be clamped together between the said bearing and the said securing devices.

8. In metal reinforcement for metal-reinforced concrete construction, the combination, with two intersecting rods crossing each other in substantially horizontal planes and arranged the one above and seated upon and in position to be clamped downwardly against the other, of a chair or stand contoured to permit the upper rod to rest on the lower rod and comprising a saddle arranged to form a seat for the lower rod; means for exerting pressure downwardly upon the upper rod at one means for exerting pressure downwardly upon the upper rod at the other side of the lower rod.

9. In metal reinforcement for metal-reinforced concrete const-ruction, the combination, with two intersecting rods crossing each other in substantially horizontal planes and arranged the one above and seated upon and in position to be clamped downwardly against the other, of means for locking the rods together at their intersection, said locking means'comprising a metal piece contoured to permit the upper rod to rest on the lower rod, said metal piece having suitably spaced legs, and a' saddle intermediate the legs. which saddle is arranged to form a seat for the lower rod, said metal piece also having bail-shaped members extending above the upper rod and connecting the sad dle with the legs, and members interposed between the upper rod and the inner surfaces of thecentral portions of the bailshaped members and tightly holding the upper rod down upon the lower rod.

10. In metal reinforcement for metal-reinforced concrete construction, the combination, with two intersecting rods crossing each other in substantially horizontal planes and arranged the one above and seated upon &

and in position to ibe clamped downwardly against the other, of a chair or stand contoured to permit th ipper rod to rest on the lower rod, said stand being arranged to rest upon a floor and comprising two legs and a saddle intermediate the legs, saidlegs being spaced longitudinally of the upper rod and arranged at opposite sides respectively of the lower rod and provided with' holes extending laterally therethrough, and the' saddle being arranged to form a seat for the lower rod, and means whereby the upper rod is clamped downwardly "against.

the lower rod. v

11. In metal reinforcement for metal-reinforced concrete construction, the combination, with two intersecting rods crossing each other in substantially horizontal planes and arranged the one above and seated upon a and in position to be clamped downwardly against the other, of a chair or stand contoured to permit the upper rod to rest on the lower rod, said stand being arranged to rest upon a floor and comprising two legs and a saddle intermediate the I s, said legs being spaced longitudinally 0% the upper rod and arranged at opposite sides respectively of the lower rod, and the saddle being arranged to form a seat for the lower rod; means for exerting pressure downwardly upon theupper'rod at one side of the lower rod, and means for exerting "pressure downwardly upon the upper rod at the other side of the lower rod.

12. In metal reinforcement for metal-reinforced concrete construction, the combination, with two intersecting rods crossing each other in substantially horizontal planes posite sides respectively of the lower rod, a

saddle arranged between the legs and in position to form a seat for the lower rod, two pairs of bail-shaped members connecting the saddle with the legs said pairs being arranged at opposite sides. respectively of the lower rod and the members of each air of bail-shapedmembers being arrange ms-dm's at opposite sides respectively of the upper rod and extending far enough above the upper rod to permit the interposition of a wedgebetween the said rod and the inner surfaces of the central portions of the said bail-shaped members, and wedges driven be.- tween the upper rod and the inner surfaces of the central portions of the bail-shaped members. a

13. Inmetal reinforcement for metal-reinforced concrete construction, the combination, with two intersecting rods crossing each other in substantially horizontal planes and arranged the one above and seated upon and in position to be clamped downwardly against the other, of a chair or stand con toured to permitthe upper rod to rest on the lowerrod, said stand being arranged to rest upon a floor and comprising two legs which are spacedlongitudinally of the upper rod and arranged at opposite sides respectively of the lower rod and a saddle arranged between the said legs and in position to form a seat for the lower rod, said stand also being provided at each side of the saddle with two bail shaped members connecting the saddle with the adjacent leg at opposite sides respectively of the upper rod and arranged with their end members spaced longitudinally of the upper rod and extending far enough above the upper rod to permit the interposition of a securingdevlce between the said rod and the inner surfaces of the central portions of the said bail-shaped members, and a securing device snu ly interposed between the upper rod and t e said surfaces and tightly holding the said rod downwardly against thelower rod. I

14:. In metal reinforcement for metal-reinforced concrete construction, the combination, with two intersecting rods crossing each other in substantially horizontal planes and arranged the one above and seatedupon and in position to be clamped downwardly against the other, of a sheet-metal chair or stand contoured to permit the upper rod to rest on the lower rod, said stand comprising two legs spaced longitudinally of the upper rod and arranged at opposite sides respectively arranged between the legs and in position to form a seat for the lower rod, said stand also being provided at each side of the saddle with two bail-shaped members connecting the saddle with the adjacent .leg and arranged m's-d-m's atiopposite sides respectivelyof the upper rod and extending far enough above the upper rod to permit the interposition of a wedge between the said rod and the inner surfaces ofthe central portions of the said bail-shaped members, and a wedge driven "between the said upper rod and the said surfaces.

15. In metal-reinforcement inforced concrete construction, a cha'ir or stand instrumental in locking or securing two engaging superimposed crossed rods together at-their intersection and'being contoured to permit contact between the rods,

said stand comprising laterally spaced legs and a saddle intermediate the legs and in position to'form a seat for the lower of the said rods, said stand being also rovided at thesides'of the saddle with ball-shaped members connecting the saddle with the legs and extending upwardly far enough to perfor -metal-re-- of the lower rod and a saddle mit the interposition of wedges between the upper rod and the inner surfaces of the central portions of the said bail-shaped members.

16. In metal reinforcement for metal-reinforced concrete construction, a sheet-metal chair or stand instrumental in locking or securing two engaging superimposed crossed rods together at-their intersection and being contoured to permit contact between the rods, said stand comprising two laterally spaced legs and a saddle which is arranged between the legs and in position to form a seat forthe'lower of the said rods, said stand being also provided at each side of the saddlewith two bail-shaped members connecting the saddle with the adjacent leg and spaced longitudinally of the saddle but arranged m's-d-ois and in position to accommodate the upper of the said rods between them and extending upwardly far enough to permit the interposition of a wedge between the said upper rod and the inner surfaces of the central portions of the said bail-shaped members.

In testimony whereof, I sign theforegoing specification, in the presence of two witnesses.

W itnesses:

C. H. DoRER, B.'C. BROWN.

WILLIAM s. FERGUSON. 

